Antivirus company F-Secure announced that it had found a new virus affecting Nokia Series 60 based smartphones late Monday. The virus spreads through MMS (Multimedia Message Service) when it is opened. Called CommWarrior, it searches the phone user's address book for numbers to replicate itself.

F-Secure believes that the virus has its origins in Russia as the text within the file, "OTMOP03KAM HET!" roughly means " No to braindeads" in Russian. Although the virus seems more of a nuisance than dangerous, it reflects an increased interest among virus makers to target smartphones. In late February, the mobile phone virus Cabir made its first appearance in the United States.